/ Dictionary / Index M Motrin: Meaning and Definition of Find definitions for: Mo•trin Pronunciation: (mō'trin), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of ibuprofen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: motrin (Thesaurus) Motril Mo-tse Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language